Tim Duncan has exercised his player option for next season but is not committed to playing another year, reports The Vertical’s Adrian Wojnarowkski.

The Spurs star chose to accept his $5.6 million option for 2016–17, but is still contemplating retirement, according to the report.

Duncan, 40, struggled at times last season, playing the fewest games in a non-lockout season of his career. Duncan averaged career lows in points, rebounds and minutes, and those numbers dropped during the playoffs.